Primula jeffreyi(Van Houtte) A.R.Mast & Reveal

Sierrra shootingstarSierra shootingstar

WFO wfo-0001280194 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Primula jeffreyi, photographed by Jared Shorma
fig. a Jared Shorma, CC BY 4.0 / 2021-08-28 / obs. 160242732
Primula jeffreyi, photographed by John Brew
fig. b John Brew, CC BY 4.0 / obs. 148621832
Primula jeffreyi, photographed by Matt Muir
fig. c Matt Muir, CC BY 4.0 / obs. 143790048
Primula jeffreyi, photographed by Peter Abrahamsen
fig. d Peter Abrahamsen, CC BY 4.0 / obs. 170068508
Primula jeffreyi, photographed by John Brew
fig. e John Brew, CC BY 4.0 / obs. 95813178
Primula jeffreyi, photographed by John Brew
fig. f John Brew, CC BY 4.0 / obs. 82834037
Primula jeffreyi, photographed by Tim Messick
fig. g Tim Messick, CC BY 4.0 / obs. 79880875
Primula jeffreyi, photographed by stinger
fig. h stinger, CC BY 4.0 / obs. 47587873

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 8 botanical countries

Regions where Primula jeffreyi is native: Alaska, British Columbia, California, Idaho, Montana, Oregon, Washington, Wyoming AlaskaBritish ColumbiaCaliforniaIdahoMontanaOregonWashingtonWyoming
Native distribution of Primula jeffreyi, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Alaska ASK NORTHERN AMERICA
British Columbia BRC
California CAL
Idaho IDA
Montana MNT
Oregon ORE
Washington WAS
Wyoming WYO

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 99 in flower of 101 examined

Peak flowering in May. Each bar is the share of Primula jeffreyi observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 99 of 101 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 8 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 17 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Dodecatheon crenatum Greene
  • Dodecatheon dispar A.Nelson
  • Dodecatheon exilifolium J.F.Macbr. & Payson
  • Dodecatheon glandulosum Eastw.
  • Dodecatheon jeffreyanum K.Koch
  • Dodecatheon jeffreyi Van Houtte
  • Dodecatheon jeffreyi f. pygmaeum H.M.Hall
  • Dodecatheon jeffreyi subsp. jeffreyi
  • Dodecatheon jeffreyi subsp. pygmaeum (H.M.Hall) H.J.Thomps.
  • Dodecatheon jeffreyi var. jeffreyi
  • Dodecatheon jeffreyi var. odoratum Eastw.
  • Dodecatheon jeffreyi var. typica R.Knuth
  • Dodecatheon jeffreyi var. vivaparum (Greene) Abrams
  • Dodecatheon meadia var. jeffreyi K.Brandegee
  • Dodecatheon meadia var. lancifolium A.Gray
  • Dodecatheon viviparum Greene
  • Meadia jeffreyi Kuntze

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.